Radon testing & mitigation in Grinnell
No Iowa HHS-credentialed radon professional is headquartered in Grinnell itself, but 2 credentialed Iowa contractors state on their own sites that they serve this area — see below, each cited and dated.
Closest city with 5+ credentialed contractors Ankeny · 6 contractors · 45 mi away →
Also serves this area 2 · self-reported by each company, not independently confirmed for this specific city Central Iowa Radon
Serves this area
Not headquartered in this city — states on its own site that it serves this area. contractor website, checked 2026-09-10 ·
source → Get a Free Quote Credentials & details → Adios Radon, LLC
Serves this area
Not headquartered in this city — states on its own site that it serves this area. contractor website, checked 2026-04-02 ·
source → Get a Free Quote Credentials & details →
Nearby cities closest RadonScout pages Malcom 9 mi · 1 credentialed pro based there Newton 16 mi · contractors that say they serve it Toledo 19 mi · 1 credentialed pro based there Marshalltown 23 mi · 1 credentialed pro based there Pella 25 mi · 2 credentialed pros based there Belle Plaine 26 mi · contractors that say they serve it Straight-line miles between Census place points, not driving distance. Source: U.S. Census Bureau, 2023 Gazetteer Files (Places) .
Source: Iowa HHS mitigation roster (current 9/24/2026) and measurement roster (current 9/24/2026),
cross-checked against each contractor's own website, Google Places, and Facebook where Places had
no result. Page generated 2026-11-05 from iowa_contractors_master.csv.
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